JimmyCutlass said:
Don't put confusing information in people's hands. Many consumers have no idea what they want, what to expect from a detailer or how the detailing process works. Once you give out the information, you can't get it back; whereas if you personally select who has the address after explaining the situation to them, you have a lot more control and improve the image of your business.
This is an excellent point, and I think it's something we, as detailers and professionals in the industry, overlook quite often. Customers aren't all idiots (yes, there are quite a few out there that are, but still), and they aren't all trying to be a PITA, they just don't know how the industry works and how to go about getting services from it.
When I was a product manager for a local cellular company, I used to run into the same thing, where I'd be so intensly "into" my cellular world, that I'd forget that a lot of our customers were actually first-time cellular users. For this reason, I'd spend a day or two in the retail store, serving and helping those customers myself. It gave me that persepctive again that I, every-so-often, had lost and forgotten.
I'd echo what Jimmy said, don't let customers build themselves a preconceived notion of how your business operates or what they can get from you. Instead, the goal should be wanting to get them to TALK to you, either by phone, e-mail, or an in-person meeting (however you prefer), where you can sell your services and explain how it all works.